I'd love to contribute, but web apps are no fun for me.
Discussion
There is ngit. A rust CLI and git plugin that I'd welcome contribution to. Also there is a need for a git server / relay combo, like nostr:nprofile1qqsrhuxx8l9ex335q7he0f09aej04zpazpl0ne2cgukyawd24mayt8gprfmhxue69uhhq7tjv9kkjepwve5kzar2v9nzucm0d5hszxmhwden5te0wfjkccte9emk2um5v4exucn5vvhxxmmd9uq3xamnwvaz7tmhda6zuat50phjummwv5hsx7c9z9's song, but which accepts all event kinds related to code collaboration and accepts repositories fromthee public (or not just the author and a select few). This might fit with nostr:nprofile1qqsrhuxx8l9ex335q7he0f09aej04zpazpl0ne2cgukyawd24mayt8gprfmhxue69uhhq7tjv9kkjepwve5kzar2v9nzucm0d5hszxmhwden5te0wfjkccte9emk2um5v4exucn5vvhxxmmd9uq3xamnwvaz7tmhda6zuat50phjummwv5hsx7c9z9's vision for the project or it could be a fork or a separate project. I'd be interested in collaborating around that.
Indeed, a more open git-server/relay combo would be very good.